{"id":76298,"date":"2024-10-16T05:30:12","date_gmt":"2024-10-15T21:30:12","guid":{"rendered":"https:\/\/server.hk\/cnblog\/76298\/"},"modified":"2024-10-16T05:30:12","modified_gmt":"2024-10-15T21:30:12","slug":"mysql%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a%e7%9a%84%e4%b8%89%e7%a8%ae%e6%96%b9%e5%bc%8f%ef%bc%81%ef%bc%81%ef%bc%81%ef%bc%88%e6%9c%89%e8%b6%85%e7%b4%9a%e5%a4%a7%e5%9d%91%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/76298\/","title":{"rendered":"MySQL\u522a\u9664\u6578\u64da\u7684\u4e09\u7a2e\u65b9\u5f0f\uff01\uff01\uff01\uff08\u6709\u8d85\u7d1a\u5927\u5751\uff09"},"content":{"rendered":"

MySQL\u522a\u9664\u6578\u64da\u7684\u4e09\u7a2e\u65b9\u5f0f\uff01\uff01\uff01\uff08\u6709\u8d85\u7d1a\u5927\u5751\uff09<\/h1>\n

\u5728\u4f7f\u7528MySQL\u6578\u64da\u5eab\u6642\uff0c\u522a\u9664\u6578\u64da\u662f\u4e00\u500b\u5e38\u898b\u7684\u64cd\u4f5c\u3002\u7136\u800c\uff0c\u9019\u500b\u770b\u4f3c\u7c21\u55ae\u7684\u4efb\u52d9\u537b\u53ef\u80fd\u96b1\u85cf\u8457\u8a31\u591a\u9677\u9631\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u4e09\u7a2e\u5e38\u898b\u7684\u522a\u9664\u6578\u64da\u65b9\u5f0f\uff0c\u4e26\u63d0\u9192\u8b80\u8005\u6ce8\u610f\u5176\u4e2d\u7684\u6f5b\u5728\u98a8\u96aa\u3002<\/p>\n

1. \u4f7f\u7528DELETE\u8a9e\u53e5<\/h2>\n

DELETE\u8a9e\u53e5\u662f\u6700\u5e38\u7528\u7684\u522a\u9664\u6578\u64da\u65b9\u5f0f\u3002\u5b83\u53ef\u4ee5\u6839\u64da\u6307\u5b9a\u7684\u689d\u4ef6\u522a\u9664\u4e00\u689d\u6216\u591a\u689d\u8a18\u9304\u3002\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n

DELETE FROM \u8868\u540d WHERE \u689d\u4ef6;<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u60f3\u522a\u9664\u7528\u6236ID\u70ba1\u7684\u7528\u6236\uff0c\u53ef\u4ee5\u9019\u6a23\u5beb\uff1a<\/p>\n
DELETE FROM users WHERE id = 1;<\/code><\/pre>\n
\u7136\u800c\uff0c\u4f7f\u7528DELETE\u8a9e\u53e5\u6642\u9700\u8981\u7279\u5225\u5c0f\u5fc3\uff0c\u56e0\u70ba\u5982\u679c\u4e0d\u52a0WHERE\u689d\u4ef6\uff0c\u5c07\u6703\u522a\u9664\u6574\u500b\u8868\u4e2d\u7684\u6240\u6709\u6578\u64da\uff1a<\/p>\n
DELETE FROM users;<\/code><\/pre>\n
\u9019\u6a23\u7684\u64cd\u4f5c\u662f\u4e0d\u53ef\u9006\u7684\uff0c\u6578\u64da\u4e00\u65e6\u522a\u9664\u5c07\u7121\u6cd5\u6062\u5fa9\u3002\u56e0\u6b64\uff0c\u5728\u57f7\u884cDELETE\u64cd\u4f5c\u4e4b\u524d\uff0c\u5efa\u8b70\u5148\u9032\u884c\u6578\u64da\u5099\u4efd\u3002<\/p>\n
2. \u4f7f\u7528TRUNCATE\u8a9e\u53e5<\/h2>\n
TRUNCATE\u8a9e\u53e5\u7528\u65bc\u5feb\u901f\u522a\u9664\u8868\u4e2d\u7684\u6240\u6709\u8a18\u9304\uff0c\u4e26\u4e14\u4e0d\u6703\u8a18\u9304\u6bcf\u4e00\u884c\u7684\u522a\u9664\u64cd\u4f5c\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n
TRUNCATE TABLE \u8868\u540d;<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u82e5\u8981\u6e05\u7a7ausers\u8868\uff0c\u53ef\u4ee5\u9019\u6a23\u5beb\uff1a<\/p>\n
TRUNCATE TABLE users;<\/code><\/pre>\n
TRUNCATE\u7684\u512a\u9ede\u5728\u65bc\u5176\u57f7\u884c\u901f\u5ea6\u5feb\uff0c\u56e0\u70ba\u5b83\u4e0d\u6703\u9010\u884c\u522a\u9664\u6578\u64da\uff0c\u800c\u662f\u76f4\u63a5\u91cb\u653e\u6574\u500b\u8868\u7684\u7a7a\u9593\u3002\u7136\u800c\uff0c\u9019\u500b\u64cd\u4f5c\u540c\u6a23\u662f\u4e0d\u53ef\u9006\u7684\uff0c\u4e26\u4e14\u6703\u91cd\u7f6e\u81ea\u589e\u4e3b\u9375\u7684\u8a08\u6578\u5668\u3002\u56e0\u6b64\uff0c\u5728\u4f7f\u7528TRUNCATE\u4e4b\u524d\uff0c\u52d9\u5fc5\u78ba\u8a8d\u662f\u5426\u771f\u7684\u9700\u8981\u6e05\u7a7a\u6574\u500b\u8868\u3002<\/p>\n
3. \u4f7f\u7528DROP\u8a9e\u53e5<\/h2>\n
DROP\u8a9e\u53e5\u7528\u65bc\u522a\u9664\u6574\u500b\u8868\u53ca\u5176\u7d50\u69cb\u3002\u9019\u610f\u5473\u8457\u4e0d\u50c5\u6578\u64da\u6703\u88ab\u522a\u9664\uff0c\u8868\u7684\u5b9a\u7fa9\u4e5f\u6703\u6d88\u5931\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n
DROP TABLE \u8868\u540d;<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u82e5\u8981\u522a\u9664users\u8868\uff0c\u53ef\u4ee5\u9019\u6a23\u5beb\uff1a<\/p>\n
DROP TABLE users;<\/code><\/pre>\n
\u4f7f\u7528DROP\u8a9e\u53e5\u6642\uff0c\u5fc5\u9808\u975e\u5e38\u8b39\u614e\uff0c\u56e0\u70ba\u9019\u5c07\u5c0e\u81f4\u6240\u6709\u6578\u64da\u548c\u8868\u7d50\u69cb\u7684\u6c38\u4e45\u4e1f\u5931\u3002\u8207DELETE\u548cTRUNCATE\u4e0d\u540c\uff0cDROP\u64cd\u4f5c\u7121\u6cd5\u6062\u5fa9\uff0c\u56e0\u6b64\u5728\u57f7\u884c\u6b64\u64cd\u4f5c\u4e4b\u524d\uff0c\u5efa\u8b70\u518d\u6b21\u78ba\u8a8d\u662f\u5426\u771f\u7684\u9700\u8981\u522a\u9664\u6574\u500b\u8868\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5728MySQL\u4e2d\uff0c\u522a\u9664\u6578\u64da\u7684\u4e09\u7a2e\u65b9\u5f0f\u5404\u6709\u5176\u7279\u9ede\u548c\u9069\u7528\u5834\u666f\u3002\u4f7f\u7528DELETE\u8a9e\u53e5\u6642\u9700\u8b39\u614e\u8a2d\u7f6e\u689d\u4ef6\uff0c\u4ee5\u514d\u8aa4\u522a\u6578\u64da\uff1bTRUNCATE\u8a9e\u53e5\u96d6\u7136\u57f7\u884c\u5feb\u901f\uff0c\u4f46\u540c\u6a23\u4e0d\u53ef\u9006\uff1b\u800cDROP\u8a9e\u53e5\u5247\u662f\u6700\u5177\u7834\u58de\u6027\u7684\u64cd\u4f5c\uff0c\u61c9\u5728\u78ba\u4fdd\u4e0d\u518d\u9700\u8981\u8a72\u8868\u7684\u60c5\u6cc1\u4e0b\u4f7f\u7528\u3002<\/p>\n
\u70ba\u4e86\u907f\u514d\u6578\u64da\u4e1f\u5931\uff0c\u5efa\u8b70\u5728\u9032\u884c\u4efb\u4f55\u522a\u9664\u64cd\u4f5c\u4e4b\u524d\uff0c\u52d9\u5fc5\u505a\u597d\u6578\u64da\u5099\u4efd\u3002\u82e5\u60a8\u9700\u8981\u7a69\u5b9a\u7684\u6578\u64da\u5eab\u74b0\u5883\uff0c\u8003\u616e\u4f7f\u7528\u9999\u6e2fVPS<\/a>\u670d\u52d9\uff0c\u4ee5\u78ba\u4fdd\u60a8\u7684\u6578\u64da\u5b89\u5168\u548c\u9ad8\u6548\u7ba1\u7406\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22MySQL\u522a\u9664\u6578\u64da\u7684\u4e09\u7a2e\u65b9\u5f0f\uff0c\u63ed\u793a\u6f5b\u5728\u7684\u8d85\u7d1a\u5927\u5751\uff0c\u5e6b\u52a9\u4f60\u907f\u514d\u5e38\u898b\u932f\u8aa4\uff0c\u78ba\u4fdd\u6578\u64da\u5b89\u5168\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-76298","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76298","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=76298"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76298\/revisions"}],"predecessor-version":[{"id":76299,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76298\/revisions\/76299"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=76298"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=76298"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=76298"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}